Traveling with children requires additional planning, and airlines, the FAA, and TSA each have rules that families should understand before booking. The guidance below reflects current U.S. requirements and best practices as of 2026.
Seating, Tickets, and Safety
Infants and Toddlers (Under Age 2)
- Children under age 2 may travel as a lap infant on domestic flights.
- The FAA strongly recommends that infants and toddlers fly in their own ticketed seat, secured in an FAA‑approved child restraint system (CRS) or CARES harness, as this is the safest option during turbulence and unexpected events. [faa.gov]
- Purchasing a seat for your child is the only way to guarantee that a CRS can be used onboard. [faa.gov]
Children Age 2 and Older
- Children who have reached their second birthday must travel in their own seat and have a purchased ticket.
- An FAA‑approved CRS may be used if it fits within the airline seat and is properly labeled for aircraft use. Booster seats are not permitted for taxi, takeoff, or landing. [faa.gov]
Tip: Not all car seats are approved for aircraft use. Look for labeling that states the seat is “certified for use in motor vehicles and aircraft.” [faa.gov]
Airline‑Specific Policies
Each airline sets its own policies regarding:
- Bassinet availability
- Seating restrictions for child restraint systems
- Unaccompanied minor service
- Documentation required for children traveling internationally or with only one parent
Always confirm requirements directly with the airline before booking, especially for international travel.
TSA Security Screening for Children
Identification Requirements
- Children under 18 do not need ID for domestic U.S. travel when accompanied by an adult.
- For international travel, all travelers of any age must have a valid passport. [tsa.gov]
Screening Experience
- TSA uses modified screening procedures for children age 12 and under, including allowing shoes to remain on.
- Parents may carry infants and toddlers through the metal detector.
- Strollers, car seats, and child carriers are screened and may need to be folded. [tsa.gov]
Formula, Breast Milk, and Baby Food
- Formula, breast milk, toddler drinks, and baby food are exempt from standard liquid limits and may exceed 3.4 oz.
- These items must be declared for separate screening and may be tested by TSA. [tsa.gov]
Family Screening Lanes (Select Airports)
- TSA has introduced family‑friendly screening lanes at select U.S. airports to assist travelers with young children.
- Availability varies by airport and is expanding nationwide. [whec.com]
Booking Assistance for Yale Travelers
For support when booking air travel that includes children—such as seating questions, airline rules, or special assistance—contact World Travel, Yale’s preferred travel management company.